Andrew Burton <aliensrcooluk at yahoo.co.uk> writes:
Speaking of TV (and admittedly going OT, so I
apologise) [...]
It's not completely off-topic: my father was working as an electronic
engineer at LWT in the 1970s when ORACLE (the original ITA Teletext
service) first started, and he has fond memories of coming in early to
boot up the PDP-11 that generated the Teletext signal...
Teletext Ltd. took over from ORACLE at the end of 1992, and ORACLE
decided to go out with a bang:
http://teletext.mb21.co.uk/gallery/oracle/end-gone.shtml
This week's farewell messages were rather disappointing in comparison,
with no mention of ORACLE having actually done all the hard work before
Teletext Ltd. got there:
http://offog.org/stuff/goodbye-teletext/g/
Maybe we'll see something more interesting when analogue TV finally goes
off the air and the remaining few pages disappear -- but I doubt it!
An idea that's come up a few times on the bbc-micro list is building
something to generate a Teletext signal at home, since there's a variety
of interesting hardware for decoding Teletext on various machines
(e.g. the Acorn and Morley Teletext adapters for the BBC), and it'd be
nice to be able to demonstrate things like Telesoftware. This should be
reasonably easy given a fast-enough microcontroller... and when it
happens, I've now got a dump of a couple of hours of ITV/C4's
pre-shutdown Teletext stream from Monday night to play back through it.
--
Adam Sampson <ats at offog.org> <http://offog.org/>